So, I have a few drops of water showing up on my first level ceiling right about where the bathrooms are on the second level. On the second level I have two bathrooms - back to back (and the toilets are almost back to back).
I got a plumber to look at the leak. He opened up the ceiling but couldn't find the source of the leak and suggested I replace the wax ring of the guest bathroom toilet (which seem to be right above the point where the drops of water come). We did that. A few days later I noticed the leak still happening.
I have tried to "troubleshoot" the leak - first few days had no one use the guest bathroom toilet but the leak still was there. Then, switched around - had folks not used the master bathroom toilet. The leak is still there. It is not a steady drip - seems to happen a little after the toilet is used.
I am having the plumber come back and take another look at the issue. Does anyone have ideas on what might be the cause or how to better troubleshoot the issue or even be a little more intelligent when discussing with the plumber or someone else.